Thank you for visiting Microsoft Community.Īs per the issue description and the error code which you are getting while running 'slmgr//ato' command, it seems that you are having issue in activating your Windows.įor retail editions and volume systems with a KMS host key or a Multiple Activation Key (MAK) installed, /atoprompts Windows to attempt online activation. My question-What is the use of 'slmgr//ato' command, my system is is showing an error bearing code 0x80072EF7, when i run this command. I'll be highly obliged if you can read the issue in background (the conversation i had with windows community). i also think that i was cheated on the part of windows. The bag pack which the seller was giving to me apparently local, when i refused to take it, he assured me that i'll get a genuine bag after some days. I purchased the system from a Dell authorized shop, but thing is that i am getting confused about post purchase experience.